Our selection of casual long sleeve shirts are some of the most comfortable and environmentally-friendly shirts around. Made with a variety of fabrics, from Patagonia's 100% Organic Cotton to Ex Officio's Wrinkle Release Check, we carry a shirt to fit just about any occasion. Also, when you make the effort to buy a well-made shirt, you won't have to replace it nearly as often, which is the greenest choice you can make.